protocol: added ivi_surface.visibility events for clients

This event is used to inform the client application, if its content
has become visible or invisible.

Signed-off-by: Timo Lotterbach <timo.lotterbach@bmw-carit.de>

diff --git a/protocol/ivi-client.xml b/protocol/ivi-client.xml
index bf805e8..c8bcd51 100755 (executable)
--- a/protocol/ivi-client.xml
+++ b/protocol/ivi-client.xml
@@ -30,6 +30,12 @@
         <request name="destroy" type="destructor">\r
             <description summary="destroy ivi_surface"/>\r
         </request>\r
+\r
+        <event name="visibility">\r
+            <description summary="visibility of ivi_surface has changed"/>\r
+            <arg name="visibility" type="int"/>\r
+        </event>\r
+\r
     </interface>\r
 \r
     <interface name="ivi_client" version="1">\r
@@ -45,4 +51,5 @@
         </request>\r
     </interface>\r
 \r
-</protocol>
\ No newline at end of file
+</protocol>\r
+\r